The BBRAM and eFUSEs in Zynq UltraScale+ devices are used to store AES keys and hashes of RSA keys. Software running on the processor programs the BBRAM or eFUSEs using the Xilinx Secure Key (XilSKey) library.
BBRAM in Zynq UltraScale+ devices can be used to store the 256-bit AES image decryption key. This AES key can also be stored in the eFUSEs. However, unlike BBRAM, once programmed in the eFUSEs it cannot be modified or erased.
For further product inquiries, please get in touch with our sales team at mktg@iwave-global.com
Please find the detailed product information here:
Zynq™ UltraScale+™ ZU19/ZU17/ZU11 MPSoC System on Module
Zynq™ UltraScale+™ ZU7/ZU5/ZU4 MPSoC System on Module
Zynq™ UltraScale+™ ZU5/ZU4/ZU3T/ZU3/ZU2/ZU1 MPSoC System on Module
Zynq™ UltraScale+™ ZU5/ZU4/ZU3/ZU2 MPSoC Single Board Computer